Lifting-jack



L. DUSSART.

LIFTING JACK.

APPLICATION FILED SEPT-16,1919.

1,333,583. Patentd Mar. 9, 1920.

muemtoz if i 3 z UNITE STATES PATENT carton.

LoUIsDUssAn'r, or INGAID, ILLINOIS.

IIFTING-J CK.

Specification of Letters Patent. latented l\Ia,1'. 9,'192O.

I Application filed September 16, 1919. Serial No. 324,057.

To. all whom it may concern.

Be it known that I, LOUIS DUssARr, a citizen of the United States, residing at Kincaid, in the county of Christian and State of Illinois, have invented certain new and useful Improvements in Liftlng-Jacks, of

which the following is a specification, reference being had to the accompanying draw lngs.

This invention relates to an improved lifting jack for lifting or raising various objects, preferably automobiles and othervehicles and the like, for the purpose of removing the wheels, orchanging the tires, or for making other repairs.

As an object of the invention it is'theaim to provide a deviceofthis kind, which is simple, efficient and practical in construction, and may be manufactured for airelatively 10w; cost and sold at a reasonable profit. l v 5 Anothero'bject of the invention is the-provision of -'a lifting jack including a channeled standard provided with a supporting a base, and a lifting lever provided with'an adjustable pivotal connection in the channel'of the standard, whereby an automobile orother vehicle may be raised tovarious heights, in combination with means for holding the lifting lever, after they have been moved downwardly,.and the vehicle'raised.

While the design and construction at present illustrated and, set forth is deemed preferable,"it is obvious that as a result of a reduction of the invention to a more practical form for commercial purposes, the invenend may engage under an objectto be lifted or jacked up; V

Fig. 2 isa perspect1ve view showing the lifting lever lowered, and'the objectraised.

Fig. 3 is a vertical sectional view on line v 33 of F g.2.

Fig. dis a transverse sectional view on line dlof Fig. 2.

Referring'more especially to the drawings, ldesignates a base adapted to engage the ground or floor of a garage, in order that the standard 2 which rises upwardly from the base may be held firm and in a perpendicular position. The standard 2, which rises upwardly from the base I is channeled vertically, to receive the lifting lever 3.

This channel 1 is of a width, so that the lifting lever may fit neatly between the sides of the standard, sufliciently to brace the lifting lever when it is lowered and its object raised.

Furthermore the channel acts to guide the lifting lever, when in the act of being lowcred. The opposite. sides of the standard are provided with a plurality of registering apertures 5. The lifting lever near the lower portion thereof is provided with a transverse opening or aperture 6. i

The opposite sides of the standard at its upper end is provided with registering apertures 7 The liftinglever near its upper portion is provided with a plurality of spaced apertures '8. A pivot pinor stud 9 passes through the apertures 7 and also through any one of the apertures 8. for

holding the lifting lever in different adjusted positions, whereby the. prying end of the lever may be used forlifting objects to vari ous heights. The upper end of the lifting lever terminates in an enlarged head 10.

This head has laterally extending portions 11, "which overlie the upper edges of the sides of the channeled standard. The lower ends of the overlying laterally extending parts 11 have beveled portions 12. The face "of the standard opposite the open portion of thechannel near the upper end of the standaid is cut away as shown. In other words,

the upper :end ofthe standard is bifurcated as indicated at 13, whereby the lifting lever maybe moved to a position, either in a horizontal plane, or in lnclined posit ons above or below tthOIlZOl'ltEtl plane. For example,

' when the liftinglever is positioned, so that its prying end or head 10 may engage under an object to be lifted, the lower end of the lifting lever may be raised above a horizontal plane, so that the prying end: 01. head 10 of the lifting lever may attain a better pur chase on the object to be lifted. The upper ends of the sides of the'channeled standard from a point adjacent the crotch of the bifurcation 13, to the upper end edges of the sides of the channeled standard are curved, as shown at 14, so asto permit freedom of movement of the laterally extending overhanging parts 11 of the prying head 10 of the lifting lever, so as to permit the lifting lever to move to a position above a horizontal plane. The upper end edge of the prying head 10 of the lifting lever is bifurcated as shown at 15. The-crotch of this bifurcation is wide enough to engage under various objects to be lifted, such as an axle of an automobile or other vehicle or any other part. Furthermore, this crotch is curved or rounded in cross-section, so as to permit the crotch of thebifurcation to easily slide relative to the object to be lifted, as the longer or lower arm of the lifting lever is being moved downwardly. The end flanges 16 of the bifurcation 15 constitute means to prevent the crotch of the bifurcation from slipping laterally out of engagement with an object to be lifted. The inner faces of these flanges 16 are beveled and rounded corresrmndingly to the rounded or curved face of the crotch 15, so that the flanges, should they contact with an object to be lifted, will easily slide; :When the lifting lever has been moved soj-that the prying head thereof lifts an object, and also so that the lifting lever is allowed to enter the channel of the standard, a

pin or key is inserted through any one of the plurality of registering apertures 5 of the opposite sides of the channeled standard, and through the apertures 6 of the lever, so as "to hold the lever in its lowered position. In

. lever is in engagement with the object. The

outer face of the lifting lever has secured thereto as at 18 a handle 19, by which the flifting lever may be removed or swung out of the channel of thestandard, so that the lever may be raised toward or above a hori'- zontal plane.

The inventlon having been set forth, what is claimed as new and useful is:

1. "In a lifting jack, the combination with a standard provided with a base, and having one face channeled vertically for its full length, the upper end of the channel being open, the upper end of the standard being bifurcated, of a lifting lever adjustable and pivotally mounted between the side of the upper end of the standard and engaging said bifurcation, said lifting lever comprisin a or in head havin a rounded bifurcation to engage an object to be lifted, and also including an elongated leverage arm,

adapted to enter the lower part of the chan-- nel, when the lifting lever is in a perpendicular position with the channel, said bifurcation of the upper end of the standard constituting means to permit the lifting lever to move freely, and allow the leverage arm to assume a position near or above a horizontal plane, when the lifting lever is moved pivotally, the lower portions of the sides of the standard having a plurality of apertures, the lower portion of the leverage arm having an aperture, and a pin'adapted to extend through any one of the apertures of the lower portions of the sides of the standard, and through the aperture of the leverage arm, to correspond with the adjustment of the pivot of the lifting lever, so as to hold the lifting lever within the channel and in a perpendicular position.

2. In a lifting jack, the combination with a base, and a standard constructed integrally and as one piece with the base and rising perpendicularly from the base, said standard being U-shaped in cross section, the opposite sides of the standard near its upper end having registering apertures, the lower portions of the sides of the standard each having a pluralityof apertures registering necting wall between the Sid es of the standard being cut away, whereby the sides of the'standard may act as extensions to receive the upper thumb screw and to support the lever, said cut away part of thecross connectin wall causmga b1furcat1on to be with those of the opposite side, of a lifting formed wherebv the lever'may move to a a horizontal position. said lever having a pry- V ing head provided with a rounded edge to cam under an obiect'to belifted and provided with end flanges to coiiperate with the obiect to prevent lateral d splacement of the head, the lower end of the lever having an opening, and means passing through any two of the apertures of the lower end of the standard and through the opening of the lever to hold it between the sides of the standard.

3. In a lifting jack, the combination with a base, of a standard risingintegrally therefrom and disposed perpendicularly, said in saidbifurcation and having a lifting standard being U-shaped in cross section,

head at one end, said lifting head having of the standard and through the lower end an upper rounded edge to cam against an of the lever correspondingly to the adjustaa object to be lifted, the ends of the rounded bility of the lever, to hold the lever between 10 edge terminating in flanges to cooperate the sides of the standard.

5 with the object to be lifted to prevent lateral In testimony whereof I hereunto afiix my movement thereof, and adjustable means signature. r passing through the lower part of the sides LOUIS DUSSART. 

